docs: fix yarn command (#562)

* docs: fix yarn command

* Apply suggestions from code review

Co-authored-by: Almeida <almeidx@pm.me>

* fix require statement

Co-authored-by: LongYinan <lynweklm@gmail.com>
Co-authored-by: Almeida <almeidx@pm.me>

README.md

@@ -96,7 +96,7 @@ main()
 const { writeFileSync } = require('fs')
 const { join } = require('path')
 
-const { createCanvas, GlobalFonts } = require('../index.js')
+const { createCanvas, GlobalFonts } = require('@napi-rs/canvas')
 
 GlobalFonts.registerFromPath(join(__dirname, '..', 'fonts', 'AppleColorEmoji@2x.ttf'), 'Apple Emoji')
 GlobalFonts.registerFromPath(join(__dirname, '..', '__test__', 'fonts', 'COLRv1.ttf'), 'COLRv1')
@@ -328,7 +328,7 @@ $ node scripts/build-skia.js
 
 # Install NPM packages, build the Node.js addon:
 $ npm install -g yarn
-$ yarn install --mode=skip=build # Here are modules are used for benchmarking and hard to install, you can skip it by specifying `--mode=skip=build`
+$ yarn install --mode=skip-build # Here are modules that are used for benchmarking and are hard to install, you can skip it by specifying `--mode=skip-build`
 $ sudo dnf install clang # https://fedora.pkgs.org/34/fedora-x86_64/clang-12.0.0-0.3.rc1.fc34.x86_64.rpm.html
 $ yarn build